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ESE 2020: Material Science and Engineering Quiz 2
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Question 1
Materials in which the atomic order extends uninterrupted over the entirely of the specimen; under some circumstances, they may have flat faces and regular geometric shapes, are called
Question 2
An element X (At. Wt. = 80 g/mol) having fcc structure, calculate no. of unit cells in 8 gm of X :
Question 3
What is the volume of an FCC unit cell in terms of its atomic radius R?
Question 4
A compound alloy of gold and copper crystallizes in a cubic lattice in which the gold atoms occupy the lattice points at the corners of a cube and the copper atoms occupy the centres of each of the cube faces. The formula of this compound is
Question 5
Which one of the following is termed as sacrificial protection of metal?
Question 6
The critical temperature above which ferromagnetic materials lose their magnetic property is called
Question 7
The material which exhibit same elastic property in all directions is called-
Question 8
Fraction of total volume occupied by atoms in a simple cubic cell is
Question 9
The atomic number of an element is 8. How many electrons will it gain to form a compound with sodium?
Question 10
In a semiconductor, the resistivity
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Dec 9ESE & GATE CE
